12. http://unstats.un.org/unsd/ --United Nations Statistics Division. The Statistics Division compiles statistics from many international sources and produces global updates, including the Statistical Yearbook, World Statistics Pocketbook and yearbooks in specialized fields of statistics.

15. http://www.unl.edu/SPPQ/datasets.html -- State Politics and Policy Quarterly Data Resource. Contains US state data in the areas of population and vital statistics, politics, education, crime, business and economy.